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Service bulletin NCU2021080015

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10205838
Published by NHTSA2022-01-03
Manufacturer's numberNCU2021080015
Manufacturer's date2021-09-17
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

MBUX multimedia system control .

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Labels and manuals, Software

Vehicles listed
MERCEDES-BENZ AMG CLA352021
MERCEDES-BENZ AMG CLA452021
MERCEDES-BENZ AMG GLA352021
MERCEDES-BENZ AMG GLA452021
MERCEDES-BENZ AMG GLA45 S2021
MERCEDES-BENZ AMG GLC432021
MERCEDES-BENZ AMG GLC632021
MERCEDES-BENZ AMG GLC63 S2021
MERCEDES-BENZ CLA 2502021
MERCEDES-BENZ GLA 2502021

Listing a model year does not mean every vehicle of it is concerned: the document says which.